net.n2oapp.framework.boot.sql.rowmapper.PostgresMapRowMapper Maven / Gradle / Ivy

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package net.n2oapp.framework.boot.sql.rowmapper;

import net.n2oapp.framework.boot.sql.PostgresUtil;
import org.springframework.jdbc.core.RowMapper;
import org.springframework.jdbc.support.JdbcUtils;
import org.springframework.util.LinkedCaseInsensitiveMap;

import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.Map;

/**
 * Преобразует столбцы, вернувшиеся в ответ из postgresql, в мапу объектов
 */
public class PostgresMapRowMapper implements RowMapper> {

    @Override
    public Map mapRow(ResultSet rs, int rowNum) throws SQLException {
        int columnCount = rs.getMetaData().getColumnCount();
        Map result = new LinkedCaseInsensitiveMap<>(columnCount);
        for (int i = 1; i <= columnCount; i++) {
            result.putIfAbsent(JdbcUtils.lookupColumnName(rs.getMetaData(), i),
                    PostgresUtil.resolveValue(rs.getObject(i)));
        }
        return result;
    }

}